| 摘要 |
The present invention relates to a dew proofing road sign plate using underground heat and, in particular, to a road sign plate capable of preventing the road sign plate from forming dew by transferring underground heat to the road sign plate based on the fact that the underground temperature is more stable and higher than the temperature of the earth′s surface. The dew proofing road sign plate using underground heat comprises: an underground module to absorb underground heat by being buried underground; a sign plate module wherein a retro-reflection film is attached; and an underground heat transfer cable to connect the underground module and the sign plate module and to transfer the underground heat to the sign plate module. According to the present invention, the dew proofing road sign plate using underground heat prevents the retro-reflection film attached to the road sign plate from being covered with dew as the underground module and the underground heat transfer cable make up the road sign plate. Moreover, the present invention provides a road sign plate which has a long service life and can be operated at low costs. |
